Automatic hydrologic parameter measuring system for river flow and the method using the same

Abstract

An automatic hydrologic parameter measuring system for a river flow comprises a supporting installed below a bridge surface; a waterproof box connected to a steel rope for suspending a weight; another end of the rope extending downwards out of the waterproof box for retaining the weight; a waterproof electric wire winding around the steel rope for transferring signals to the signal processor; a water pressure meter installed in a hollow space of the weight; when the weight being in water, the water pressure meter starts the measuring process; after the weight reaches to the riverbed, the water pressure is unchangeable; and a water pressure meter installed in a hollow space of the weight; when the weight being in water, the water pressure meter starts the measuring process; after the weight reaches to the riverbed, the water pressure is unchangeable.

Description

FIELD OF THE INVENTION[0001]The present invention related to hydrologic parameter measuring for river flows, and in particular to an automatic hydrologic parameter measuring system for a river flow and the method using the same.BACKGROUND OF THE INVENTION[0002]For a river, measurements of hydrologic parameters are helpful to early warning of floods, safety of persons and bridges, etc. The parameters are such as water levels, flow speeds, riverbeds, sand density in the flows, etc. However, currently, other than water levels, other hydrologic parameters are measured manually. For example, in measurement of the height from the riverbed to the surface of a river, conventionally, a weight is tied to a rope and then they sunk into water and then to the riverbed. The length from the river surface to the riverbed can be derived by the height of the bridge to the river surface subtracting the length of the rope. However, the rope is easy to vibrate and thus is not vertical to the river surfa...

AI Technical Summary

Benefits of technology

[0005]Accordingly, for improving the above mentioned prior art defects, the present invention provides an automatic hydrologic parameter measuring system for a river flow comprises a supporting installed below a bridge surface; a waterproof box connected to a steel rope for suspending a weight; another end of the rope extending downwards out of the waterproof box for retaining the weight; a waterproof electric wire winding around the steel rope for transferring signals to the signal processor; a water pressure meter installed in a hollow space of the weight; when the weight being in water, the water pressure meter starts the measuring process; after the weight reaches to the riverbed, the water pressure is unchangeable; and a water pressure meter installed in a hollow space of the weight; when the weight being in water, the water pressure meter starts the measuring process; after the weight reaches to the riverbed, the water pressure is unchangeable.

Problems solved by technology

However, the rope is easy to vibrate and thus is not vertical to the river surface.

Practically, in typhoon period, flood flow is strong, under the consideration of personal safety or when the bridge is closed, manual monitor cannot be realized all day long so that it is very possible that no data is monitored when the flow is at a peak value.

As a result, the system can not provide an effective assistance.

Although some manual operations are planned to be preformed, the time period is too long to get affect data.

Furthermore, at night or heavy rain period, the personal safety and precision of the result are greatly affected.

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